Digital Cinema Projector Watermarking System and Method

Abstract

Watermarking a projected image for rendering a digital presentation with a watermark coding. The watermark coding uniquely identifies the source of the image presentation. The watermark coding includes a set of images wherein each image defines a watermark image. The images include dots which uniquely define each image relative to the other images in the set by at least an angular relationship between dots of the image.

1 . A system for watermarking a projected image, comprising:
 a source for rendering a presentation with at least one watermark coding identifying the source of the projected image, the watermark coding including   at least one image each image defining a watermark and including at least three shapes which uniquely define each image.   
   
   
       2 . The system according to  claim 1 , wherein the at least shapes uniquely identify each image by an angular relationship between the at least three shapes. 
   
   
       3 . The system as recited in  claim 1 , wherein the at least one image is a set of images which comprises all of the images for watermarking a given presentation. 
   
   
       4 . The system as recited in  claim 1 , further comprising a scripting mechanism which determines a manner in which the image is rendered. 
   
   
       5 . The system as recited in  claim 4 , wherein the scripting mechanism renders all watermark files without knowing which image is rendered. 
   
   
       6 . The system as recited in  claim 1 , wherein the shapes of the image are positioned relative to each other such that connecting lines between the dots present lines which are other than horizontal, vertical or 45 degrees in orientation. 
   
   
       7 . The system as recited in  claim 1 , wherein connecting lines between shapes form angles which are unique to each image. 
   
   
       8 . The system as recited in  claim 3 , wherein the set of images includes four images. 
   
   
       9 . The system as recited in  claim 8 , wherein a pattern of the four images is positioned in 13 zones during the presentation. 
   
   
       10 . The system as recited in  claim 3 , wherein the set of images are rendered in at least four locations of the presentation. 
   
   
       11 . The system as recited in  claim 1 , wherein the shapes are positioned in accordance with a reference grid. 
   
   
       12 . The system as recited in  claim 1 , wherein the shapes are positioned such that shape positions are unique for each said image in a plurality of the images. 
   
   
       13 . The system as recited in  claim 1 , wherein the watermark coding includes a location having a parity calculation. 
   
   
       14 . The system as recited in  claim 1 , wherein the shapes include any geometric shape. 
   
   
       15 . A system for watermarking a projected image, comprising:
 at least one image defining a watermark, the image including shapes which uniquely define said image, the dots being at least three shapes which form at least an angular relationship between the shapes to uniquely define said image.   
   
   
       16 . The system as recited in  claim 15 , wherein at least one image is a plurality of said image for watermarking a given presentation. 
   
   
       17 . The system as recited in  claim 15 , further comprising a scripting mechanism which determines a manner in which the image is rendered. 
   
   
       18 . The system as recited in  claim 15 , wherein the shapes include any geometric shape. 
   
   
       19 . The system as recited in  claim 15 , wherein the shapes of the image are positioned relative to each other such that connecting lines between the shapes present lines which are other than horizontal, vertical or 45 degrees in orientation. 
   
   
       20 . The system as recited in  claim 15 , wherein connecting lines between the shapes form angles which are unique to said image. 
   
   
       21 . The system as recited in  claim 16 , wherein the set of images includes four images. 
   
   
       22 . The system as recited in  claim 21 , wherein a pattern of the four images is positioned in 13 zones during the presentation. 
   
   
       23 . The system as recited in  claim 15 , wherein the set of images are rendered in at least four locations of the presentation. 
   
   
       24 . The system as recited in  claim 15 , wherein the shapes are positioned in accordance with a reference grid 
   
   
       25 . The system as recited in  claim 15 , wherein the shapes are positioned such that shape positions are unique for each image in a plurality of said image. 
   
   
       26 . A method for watermarking a presentation to identify its source, comprising:
 generating a set of images from watermark files in accordance with an identity of a source of a presentation, each image defining a watermark wherein the images include shapes which uniquely define each image relative to the other images by at least an angular relationship between shapes of the image.   
   
   
       27 . The method as recited in  claim 26 , further comprising rendering a presentation along with the set of images wherein the set of images are arranged to uniquely identify said source of a presentation. 
   
   
       28 . The method as recited in  claim 26 , wherein the images are constructed from a plurality of shapes, and further comprising positioning the dots relative to each other such that connecting lines between the dots presents lines which are other than horizontal, vertical or 45 degrees in orientation. 
   
   
       29 . The method as recited in  claim 28 , wherein the connecting lines form angles which are unique to each shape in the plurality of glyphs. 
   
   
       30 . The method as recited in  claim 26 , further comprising providing a selection of four images such that the four images are selectively placed in different zones of the presentation. 
   
   
       31 . The method as recited in  claim 27 , wherein rendering includes rendering images in at least four locations of the presentation. 
   
   
       32 . The method as recited in  claim 26 , wherein the dots are positioned in accordance with a reference grid. 
   
   
       33 . The method as recited in  claim 26 , wherein the dots are positioned such that dot positions are unique for each image in the set of images. 
   
   
       34 . The system as recited in  claim 27 , wherein rendering includes employing a subtitling mechanism. 
   
   
       35 . The system as recited in  claim 26 , further comprising providing a placement image which is a composite of the set of images and determining a placement of the images in the presentation using the placement image. 
   
   
       36 . A method by a film projector comprising:
 projecting at least one watermark coding identifying the source of a projected image, the watermark coding including at least one image defining the watermark.